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Mapping Hydrological Pathways at Nantymwyn Lead Mine / AARON TODD

Swansea University Author: AARON TODD

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DOI (Published version): 10.23889/SUThesis.71057

Abstract

Nantymwyn Lead Mine is one of over 1,300 known abandoned metal mines in Wales. It is ranked 11th in the top 50 highest priority metal mines requiring remediation. There is no legal obligation for the operators or owners of mines abandoned in the UK before 2000 to stop or reduce contamination from th...

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Published: Swansea 2025
Institution: Swansea University
Degree level: Doctoral
Degree name: Ph.D
Supervisor: Robertson, I.; Walsh, R.; Edwards, P.; and Byrne, P.
URI: https://cronfa.swan.ac.uk/Record/cronfa71057
first_indexed 2025-12-03T10:53:43Z
last_indexed 2025-12-05T09:33:39Z
id cronfa71057
recordtype RisThesis
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spelling 2025-12-03T10:56:13.4799411 v2 71057 2025-12-03 Mapping Hydrological Pathways at Nantymwyn Lead Mine 500d8da3b3b6bb2906971d3331bfde99 AARON TODD AARON TODD true false 2025-12-03 Nantymwyn Lead Mine is one of over 1,300 known abandoned metal mines in Wales. It is ranked 11th in the top 50 highest priority metal mines requiring remediation. There is no legal obligation for the operators or owners of mines abandoned in the UK before 2000 to stop or reduce contamination from them, and there is evidence that Nantymwyn has been contaminating the River Tywi with lead and zinc for over a hundred years, and likely centuries prior to that. In this thesis, water samples were collected from across the site over 13 months, and calculated the flow of water in the streams, to show seasonal variations in flow, and metal fluxes. Additionally, a synoptic sampling technique was used to gauge water flow and concentrations along the stream at a single point in time, showing otherwise undetected inputs and losses of water and metals to the stream.Combined these methods will help guide future remediation of the site, by allowing efforts to be targeted where they will have the most effect. A water quality comparison was made to two other abandoned metal mines in Wales, Parys Mountain and Frongoch, showing that all three mines continued to contaminate unabated until extensive measures were applied to reduce environmental contamination at Frongoch. E-Thesis Swansea Hydrology, abandoned mine, mine hydrology, mine waste, legacy mining, metal mine, lead mine, Nantymwyn, Welsh metal mine, tracer, flow gauging, salt dilution, synoptic sampling 17 9 2025 2025-09-17 10.23889/SUThesis.71057 COLLEGE NANME COLLEGE CODE Swansea University Robertson, I.; Walsh, R.; Edwards, P.; and Byrne, P. Doctoral Ph.D KESS II (Knowledge Economy Skills Scholarships 2), EU RDF, NRW KESS II (Knowledge Economy Skills Scholarships 2), EU RDF, NRW 2025-12-03T10:56:13.4799411 2025-12-03T10:49:29.9650701 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography AARON TODD 1 71057__35732__ef47d3fe8b024a0d95485398dbd1fc3c.pdf 2025_Todd_A.final.71057.pdf 2025-12-03T10:52:57.1895588 Output 15866998 application/pdf E-Thesis – open access true Copyright: the author, Aaron Martin Lawrence Todd, 2025. Distributed under the terms of a Creative Commons Attribution Non Commercial 4.0 License (CC BY-NC 4.0). true eng https://creativecommons.org/licenses/by-nc/4.0/
title Mapping Hydrological Pathways at Nantymwyn Lead Mine
spellingShingle Mapping Hydrological Pathways at Nantymwyn Lead Mine
AARON TODD
title_short Mapping Hydrological Pathways at Nantymwyn Lead Mine
title_full Mapping Hydrological Pathways at Nantymwyn Lead Mine
title_fullStr Mapping Hydrological Pathways at Nantymwyn Lead Mine
title_full_unstemmed Mapping Hydrological Pathways at Nantymwyn Lead Mine
title_sort Mapping Hydrological Pathways at Nantymwyn Lead Mine
author_id_str_mv 500d8da3b3b6bb2906971d3331bfde99
author_id_fullname_str_mv 500d8da3b3b6bb2906971d3331bfde99_***_AARON TODD
author AARON TODD
author2 AARON TODD
format E-Thesis
publishDate 2025
institution Swansea University
doi_str_mv 10.23889/SUThesis.71057
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
document_store_str 1
active_str 0
description Nantymwyn Lead Mine is one of over 1,300 known abandoned metal mines in Wales. It is ranked 11th in the top 50 highest priority metal mines requiring remediation. There is no legal obligation for the operators or owners of mines abandoned in the UK before 2000 to stop or reduce contamination from them, and there is evidence that Nantymwyn has been contaminating the River Tywi with lead and zinc for over a hundred years, and likely centuries prior to that. In this thesis, water samples were collected from across the site over 13 months, and calculated the flow of water in the streams, to show seasonal variations in flow, and metal fluxes. Additionally, a synoptic sampling technique was used to gauge water flow and concentrations along the stream at a single point in time, showing otherwise undetected inputs and losses of water and metals to the stream.Combined these methods will help guide future remediation of the site, by allowing efforts to be targeted where they will have the most effect. A water quality comparison was made to two other abandoned metal mines in Wales, Parys Mountain and Frongoch, showing that all three mines continued to contaminate unabated until extensive measures were applied to reduce environmental contamination at Frongoch.
published_date 2025-09-17T05:32:11Z
_version_ 1851098117716312064
score 11.444473

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